CN110735647B - Eccentric hob type heading machine capable of breaking rock according to predetermined path without influencing supporting operation - Google Patents
Eccentric hob type heading machine capable of breaking rock according to predetermined path without influencing supporting operation Download PDFInfo
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- CN110735647B CN110735647B CN201911071177.XA CN201911071177A CN110735647B CN 110735647 B CN110735647 B CN 110735647B CN 201911071177 A CN201911071177 A CN 201911071177A CN 110735647 B CN110735647 B CN 110735647B
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- disc
- heading machine
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- 239000011435 rock Substances 0.000 title claims abstract description 52
- 239000003921 oil Substances 0.000 claims description 56
- 230000005540 biological transmission Effects 0.000 claims description 29
- 239000000956 alloy Substances 0.000 claims description 16
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000003801 milling Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 230000005641 tunneling Effects 0.000 description 22
- 239000003245 coal Substances 0.000 description 9
- 238000005065 mining Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000005553 drilling Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 230000036346 tooth eruption Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 208000001203 Smallpox Diseases 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
- E21D9/104—Cutting tool fixtures
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
- E21D9/104—Cutting tool fixtures
- E21D9/1046—Vibrating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1086—Drives or transmissions specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
Abstract
The invention discloses an eccentric hob type heading machine which does not affect supporting operation and can break rock according to a preset path. The invention has simple, compact and reliable structure, convenient assembly and disassembly, strong rock breaking capability and high efficiency, and fully utilizes the characteristic of low tensile strength of hard rock mass; the route of the rock crushed by the hob can be adjusted according to different sections, and the adaptive section is flexible; the disc cutter has small load, high performance and high efficiency in rock breaking by milling, and the hob eccentrically rotates, so that the hob can achieve the effect of rock breaking by vibration milling, and the rock breaking performance of the hob by milling is further improved.
Description
Technical Field
The invention belongs to the technical field of coal mining, relates to tunneling mechanical equipment, and particularly relates to an eccentric hob type tunneling machine which does not affect supporting operation and can break rock according to a preset path.
Background
In 2018, the "BP world energy statistics yearbook" states that: china remains the world's largest energy consumer, accounting for 23.2% of global consumption and 33.6% of global net growth; coal resource consumption accounts for 60.4% of total consumption, and the coal resource has an irreplaceable position as main energy of China in a long period of time in the future. With the increasing demand of China on coal energy, mining proportion imbalance caused by difficult rock roadway tunneling becomes a main reason for restricting coal mining in China. Nowadays, with the mature application of coal mining mechanized mining, the mining efficiency is greatly improved, the phenomenon of unbalanced mining proportion becomes more prominent, and hard rock tunneling mechanical equipment becomes a bottleneck limiting the cooperative implementation of mine coal mining and roadway tunneling. Particularly for hard rocks with the coefficient of hardness f of the Pocken's hardness being more than or equal to 10, the impact and the abrasion on the tunneling working mechanism and a cutter mounted on the tunneling working mechanism are increased during construction, and the working environment of the tunneling equipment is worse due to the limitation of space, so that the tunneling effect of the tunneling working mechanism in a hard rock roadway is poorer, and the tunneling cost is high.
In the prior art, a drilling and blasting method and a mechanical cutting tooth rock breaking method are mostly adopted for coal mine tunnel excavation, wherein the drilling and blasting method has high efficiency and strong applicability to strata, but has large dust and toxic gas discharge amount, and is easy to cause major accidents such as gas explosion, and therefore, the method is not beneficial to safe, efficient and green mining of ore body resources. The mechanical cutting tooth is high in difficulty and load in breaking hard rock, the cutting tooth is easy to damage and needs to be replaced frequently, rock roadway tunneling efficiency is low, cost is high, and underground experiments prove that economic tunneling of a hard rock roadway cannot be achieved by a cutting tooth milling rock breaking mode.
Disclosure of Invention
The invention aims to provide an eccentric hob type heading machine which does not affect supporting operation and can break rock according to a preset path, and the characteristics of small vibration milling load, high performance and high efficiency of an eccentric disc cutter are fully utilized, so that the rapid breaking of hard rock is realized, and the heading speed of a coal mine roadway is improved.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: an eccentric hob type heading machine which does not affect supporting operation and can break rock according to a preset path comprises a crawler traveling mechanism, a rack, a hydraulic pump station, a power box, a sliding guide rail base, a propulsion oil cylinder I, a sliding seat, a transmission box, a hob arm rotating and sliding device, a hob arm, a low-speed large-torque motor, an eccentric disc hob, a control box, a loading device, a conveying device, a temporary supporting device and an auxiliary operation platform;
the frame is arranged on a crawler traveling mechanism, the hydraulic pump station, the power box, the sliding guide rail base, the temporary support device and the auxiliary operation platform are all arranged on the frame, wherein the hydraulic pump station and the power box are positioned at the tail part of the frame and are symmetrically arranged left and right, the sliding guide rail base is positioned at the front ends of the hydraulic pump station and the power box, the loading device is arranged at the front end of the frame, the conveying device is arranged in the middle of the loading device and below the frame, the sliding seat is slidably arranged on the sliding guide rail base and is connected with the sliding guide rail base through two propulsion oil cylinders I, the transmission box is arranged at the front end of the sliding seat, two hydraulic motors are symmetrically arranged on a box body of the transmission box, an output shaft of the hydraulic motor is connected with an input shaft of the transmission box, and a gear I arranged on the input shaft of the transmission box is meshed with a gear II, the rotary sliding device of the hob arm is arranged at the front end of an output shaft of the transmission case, the rotary sliding device of the hob arm comprises a casing in a cuboid structure, an oil cylinder mounting plate is fixed at the upper end of the casing, an E-shaped groove is formed in the casing, the hob arm is inserted into the E-shaped groove and connected with the oil cylinder mounting plate through a propulsion oil cylinder II, the low-speed large-torque motor is arranged at the front end of the hob arm, and the eccentric disc hob is eccentrically arranged on the output shaft of the low-speed large-torque motor;
the propulsion oil cylinder I, the hydraulic motor, the propulsion oil cylinder II, the temporary supporting device and the auxiliary operation platform are respectively connected with the hydraulic pump station through hydraulic oil paths, the control box is installed at the upper end of the power box, and the low-speed high-torque motor and the control box are respectively electrically connected with the power box.
Further, eccentric disc cutter includes the disc blade disc, disc blade disc front end is inlayed and is had a plurality of mechanical picks, and the welding has a plurality of alloy heads on the circumference of disc blade disc, and disc blade disc rear end processing has the hole of an installation low-speed big torque motor output shaft processing has the keyway in the hole.
Preferably, the axis of the hole is offset from the axis of the disc cutter by 2-5cm, so that the eccentric disc cutter can vibrate to a certain degree during rotation.
Preferably, the material of the mechanical cutting pick is hard alloy, the mechanical cutting pick presents an Archimedes spiral line array at the front end of the disc-shaped cutter head, and the rotation direction is anticlockwise.
More preferably, there are a total of 12 archimedes spirals arrayed.
Preferably, the alloy head material is hard alloy, and the alloy heads are distributed on the circumference of the disc-shaped cutter head at equal intervals.
Preferably, the steering of the low-speed large-torque motor is anticlockwise, and the load of the mechanical cutting tooth in rock breaking can be reduced according to the shape of a spiral line arrayed by the mechanical cutting tooth.
Further, the hobbing cutter arm is including the arm body that is the cuboid structure, set up two parallel equal wide rectangle guide slots on the terminal surface before the arm body, the hobbing cutter arm passes through two the location in hobbing cutter arm rotary sliding device is realized to the rectangle guide slot.
Further, the temporary support device is composed of four propulsion oil cylinders III and an arched support shed, the arched support shed is installed at the upper ends of the four propulsion oil cylinders III, the lower ends of the four propulsion oil cylinders III are fixedly installed on the rack, and the four propulsion oil cylinders III are respectively connected with the hydraulic pump station through hydraulic oil paths.
Furthermore, the auxiliary operation platform is composed of four propulsion oil cylinders IV and an operation platform, the operation platform is installed at the upper ends of the four propulsion oil cylinders IV, the lower ends of the four propulsion oil cylinders IV are fixedly installed on the rack, and the four propulsion oil cylinders IV are respectively connected with the hydraulic pump station through hydraulic oil ways.
Compared with the prior art, the invention has the following beneficial effects:
the invention has simple, compact and reliable structure, convenient assembly and disassembly, strong rock breaking capability and high efficiency, and fully utilizes the characteristic of low tensile strength of hard rock mass; the route of the rock crushed by the hob can be adjusted according to different sections, and the adaptive section is flexible; the disc cutter has small load, high performance and high efficiency in rock breaking by milling, and the hob eccentrically rotates, so that the hob can achieve the effect of rock breaking by vibration milling, and the rock breaking performance of the hob by milling is further improved. A plurality of mechanical cutting teeth are installed at the front end of the hob head, and rocks can be locally crushed through the cutting teeth, so that the hob can be rapidly fed without being influenced by the milling angle of the hob. The sliding seat moves back and forth, so that huge thrust can be provided in the process of locally crushing rocks of the cutting teeth, rocks at different depths can be crushed under the static condition of the heading machine, one tunneling periodic motion of the crawler travelling mechanism is avoided, the tunneling efficiency is improved, the crawler travelling mechanism and the rack are not moved when drilling and milling are carried out, temporary support operation and auxiliary operation cannot be influenced, and the high-efficiency tunneling of a hard rock roadway is of great significance.
Drawings
FIG. 1 is a schematic view of an eccentric hob type heading machine which does not affect the supporting operation and can break rock according to a preset path;
FIG. 2 is a schematic view of the transmission case of the present invention;
FIG. 3 is a front view, partially in section, of the rotary slide of the hob arm according to the present invention;
FIG. 4 is a left side view, partially in section, of the rotary slide of the hob arm according to the present invention;
FIG. 5 is an axial view of the housing of the present invention;
FIG. 6 is an axial view of the hob arm of the present invention;
FIG. 7 is a front view partially in section of the eccentric disc cutter of the present invention;
FIG. 8 is an axial view of the eccentric disc cutter of the present invention;
FIG. 9 is a schematic diagram of the milling path of the eccentric disc cutter of the present invention;
in the figure: 1-a crawler traveling mechanism; 2, a frame; 3, a hydraulic pump station; 4, a power box; 5-sliding guide rail base; 6-propulsion oil cylinder I; 7, a sliding seat; 8, a transmission case; 8-1 — transmission case input shaft; 8-2-gear I; 8-3-gear II; 8-4-transmission case output shaft; 8-5-box body; 9-a hydraulic motor; 10-hob arm rotary sliding device; 10-1-housing; 10-1-E type groove; 10-2-propulsion oil cylinder II; 10-3-cylinder mounting plate; 11-hob arm; 11-1-arm body; 11-2-rectangular guide slot; 12-low speed high torque motor; 13-eccentric disc cutter; 13-1-disc-shaped cutter head; 13-2-mechanical cutting pick; 13-3-well; 13-4-key way; 13-5-alloy head; 14-a control box; 15-a loading device; 16-a conveying device; 17-temporary support means; and 18, assisting the working platform.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in fig. 1, the eccentric hob type heading machine which does not affect the supporting work and can break rock according to the preset path comprises a crawler traveling mechanism 1, a frame 2, a hydraulic pump station 3, a power supply box 4, a sliding guide rail base 5, a propulsion oil cylinder I6, a sliding seat 7, a transmission box 8, a hob arm rotating sliding device 10, a hob arm 11, a low-speed high-torque motor 12, an eccentric disc-shaped hob 13, a control box 14, a loading device 15, a conveying device 16, a temporary supporting device 17 and an auxiliary work platform 18.
The frame 2 is a link of each component of the heading machine, the crawler traveling mechanism 1 is installed below the frame 2 and used for realizing the traveling of the heading machine, the hydraulic pump stations 3, the power supply boxes 4, the sliding guide rail base 5, the temporary supporting device 17 and the auxiliary operation platform 18 are all installed on the frame 2, the hydraulic pump stations 3 and the power supply boxes 4 are located at the tail of the frame 2 and are arranged in bilateral symmetry, the loading device 15 is installed at the front end of the frame 2, the conveying device 16 is installed in the middle of the loading device 15 and below the frame 2 and used for conveying milled and broken rocks out of a roadway, the sliding seat 7 is installed on the sliding guide rail base 5 in a sliding mode and connected with the sliding guide rail base 5 through two propulsion oil cylinders I6, and the sliding seat 7 can move back and forth on the sliding guide rail base 5 by controlling the extension and retraction of the propulsion oil cylinder I6 piston.
As shown in fig. 1 and 2, the transmission box 8 is installed at the front end of the sliding seat 7, the transmission box comprises a box body 8-5, two hydraulic motors 9 are symmetrically installed on the box body 8-5 of the transmission box, two transmission box input shafts 8-1 and one transmission box output shaft 8-4 are arranged in the box body 8-5, the output shaft of the hydraulic motor 9 is connected with the transmission box input shaft 8-1, and two gears I8-2 installed on the transmission box input shaft 8-1 are respectively meshed with two gears II8-3 installed on the transmission box output shaft 8-4.
As shown in fig. 1 and 3 to 5, the hob arm rotating and sliding device 10 is installed at the front end of an output shaft 8-4 of the transmission case, the hob arm rotating and sliding device 10 includes a housing 10-1 in a rectangular parallelepiped structure, an oil cylinder installation plate 10-3 is fixed at the upper end of the housing 10-1, and an E-shaped groove 10-1-1 is provided in the housing 10-1.
As shown in fig. 6, the hobbing cutter arm 11 comprises an arm body 11-1 in a cuboid structure, two parallel rectangular guide grooves 11-2 with equal width are formed in the front end face of the arm body 11-1, and the width of the arm body 11-1 is matched with that of the E-shaped groove 10-1-1. The hob arm 11 is inserted into the E-shaped groove 10-1-1 and connected with the oil cylinder mounting plate 10-3 through the propulsion oil cylinder II10-2, the hob arm 11 can slide relative to the hob arm rotating and sliding device 10 by controlling the extension and retraction of a piston rod of the propulsion oil cylinder II10-2, and the hob arm rotating and sliding device 10 can rotate by controlling the rotating angle of output shafts of the two hydraulic motors 9, so that the hob arm 11 rotates.
As shown in fig. 1, 7 and 8, the low-speed large-torque motor 12 is installed at one end of the hob arm 11, the eccentric disc cutter 13 includes a disc-shaped cutter disc 13-1, a plurality of mechanical cutting picks 13-2 are embedded at the front end of the disc-shaped cutter disc 13-1, the mechanical cutting picks 13-2 are made of hard alloy, hardness is high, abrasion resistance is good, the mechanical cutting picks 13-2 present an archimedes spiral line array at the front end of the disc-shaped cutter disc 13-1, and the rotation direction is counterclockwise, and there are 12 archimedes spiral lines in the array in this embodiment. A plurality of alloy heads 13-5 are welded on the circumference of the disc-shaped cutter head 13-1, the alloy heads 13-5 are made of hard alloy, the hardness is high, the wear resistance is good, and the alloy heads 13-5 are distributed on the circumference of the disc-shaped cutter head 13-1 at equal intervals. A hole 13-3 is processed at the rear end of a disc-shaped cutter disc 13-1, the axis of the hole 13-3 deviates 2-5cm from the axis of the disc-shaped cutter disc 13-1, a key groove 13-4 is processed in the hole 13-3, the eccentric disc cutter 13 is eccentrically installed on an output shaft of the low-speed high-torque motor 12 through the hole 13-3, certain vibration can be generated in the milling process of the eccentric disc cutter 13 due to the eccentric installation, the low-speed high-torque motor 12 drives the eccentric disc cutter 13 to drill holes and mill hard rock in a vibrating mode, and the milling route is shown in fig. 9. The low-speed large-torque motor 12 is anticlockwise in steering direction, and the load of the mechanical cutting tooth 13-2 in rock breaking can be reduced according to the shape of a spiral line arrayed by the mechanical cutting tooth 13-2.
The eccentric disc cutter 13 can keep the frame 2 still during the drilling and milling process, and the movement is realized by controlling the sliding seat 7 to slide on the sliding guide rail base 5, so that the temporary support and auxiliary operation are not influenced during the drilling and milling process of the eccentric disc cutter 13.
As shown in fig. 1, the temporary support device 17 is composed of four propulsion cylinders iii and an arched support shed, the arched support shed is installed at the upper ends of the four propulsion cylinders iii, and the lower ends of the four propulsion cylinders iii are fixedly installed on the frame. The auxiliary operation platform 18 is composed of four propulsion oil cylinders IV and an operation platform, the operation platform is installed at the upper ends of the four propulsion oil cylinders IV, and the lower ends of the four propulsion oil cylinders IV are fixedly installed on the rack.
The propulsion oil cylinder I6, the hydraulic motor 9, the propulsion oil cylinder II10-2, the propulsion oil cylinder III and the propulsion oil cylinder IV are respectively connected with the hydraulic pump station 3 through hydraulic oil paths, and the hydraulic pump station 3 provides high-pressure oil for the hydraulic pump station.
The control box 14 is arranged at the upper end of the power supply box 4 and can control the movement of each part of the heading machine according to a preset program. The power box 4 is electrically connected with the low-speed large-torque motor 12 and the control box 14 respectively, and the power box 4 provides electric energy for the low-speed large-torque motor.
The working principle is as follows: when the eccentric hob type heading machine which does not affect the supporting operation and can break rock according to the preset path is utilized to heading a roadway, a working face electric power system supplies power to the hydraulic pump station 3, and the hydraulic pump station 3 forms high-pressure oil after being powered on: high-pressure oil is supplied to the propulsion oil cylinder I6, so that the propulsion oil cylinder I6 can output propulsion force to realize the forward and backward movement of the eccentric disc cutter 13 through the sliding seat 7, the transmission case 8, the rotary sliding device 10 of the hob arm and the hob arm 11; supplying high-pressure oil to a hydraulic motor 9 to enable the hydraulic motor 9 to output power, and realizing circumferential movement of an eccentric disc cutter 13 on a milling working surface through a transmission case input shaft 8-1, a gear I8-2, a gear II8-3, a transmission case output shaft 8-4, a hob arm rotary sliding device 10 and a hob arm 11; high-pressure oil is supplied to the propulsion oil cylinder II10-2, so that the propulsion force output by the propulsion oil cylinder II10-2 is transmitted to the eccentric disc cutter 13 through the hob arm 11, and the eccentric disc cutter 13 moves normally on a milling working surface; supplying high-pressure oil to the temporary supporting device 17 to enable the temporary supporting device 17 to complete supporting of the roadway; the high pressure oil is supplied to the auxiliary work platform 18 to adjust the auxiliary work platform 18 to a suitable height for performing auxiliary work (e.g., anchoring, protection). The power box 4 provides power to the control box 14 and the low speed high torque motor 12. Firstly, a milling route of the eccentric disc cutter 13 is designed according to the area of the section of the excavated roadway and is input into the control box 14. Then, the control box 14 controls the piston rod of the propulsion oil cylinder I6 to be contracted to the shortest, so that the eccentric disc cutter 13 moves to the final end of the propulsion stroke; controlling the piston rod of the propulsion oil cylinder II10-2 to be contracted to the shortest, so that the disc cutter 13 moves to the position of the starting point of the milled route; and controlling the track travelling mechanism 1 to move so that the whole heading machine moves to a proper position. And controlling the temporary supporting device 17 to lift up to complete temporary supporting on the roadway. The low-speed high-torque motor 12 is started to rotate the eccentric disc cutter 13, and at the same time, the piston rod of the propulsion cylinder I6 is controlled to extend, so that the eccentric disc cutter 13 drills a hole with the depth of 5-10cm on the rock, and the propulsion cylinder I6 is locked. Finally, the hydraulic motor 9 and the propulsion oil cylinder II10-2 are controlled simultaneously, the eccentric disc cutter 13 rotates to mill and crush hard rock according to a preset route, and the height of the auxiliary working platform can be adjusted while the eccentric disc cutter 13 mills and crushes the hard rock so as to complete auxiliary work (such as anchoring and protecting). When one section is tunneled, the propulsion oil cylinder I6, the hydraulic motor 9 and the propulsion oil cylinder II10-2 are adjusted in the same mode again to perform the tunneling of the next section, the process is repeated continuously, when the piston rod of the propulsion oil cylinder I6 extends to the longest position, the temporary support device 17 is withdrawn, the piston rod of the propulsion oil cylinder I6 is retracted to the shortest position, the tunneling machine is moved forwards to a proper position by controlling the crawler traveling mechanism 1 to continue the tunneling work, the tunneling work is repeated continuously and circularly until the tunneling is completed, and during the tunneling process of the roadway, the crushed gravels are conveyed out of the roadway through the loading device 15 and the conveying device 16.
Claims (10)
1. An eccentric hob type heading machine which does not affect supporting operation and can break rock according to a preset path is characterized by comprising a crawler traveling mechanism (1), a frame (2), a hydraulic pump station (3), a power supply box (4), a sliding guide rail base (5), a propulsion oil cylinder I (6), a sliding seat (7), a transmission box (8), a hob arm rotating sliding device (10), a hob arm (11), a low-speed large-torque motor (12), an eccentric disc hob (13), a control box (14), a loading device (15), a conveying device (16), a temporary supporting device (17) and an auxiliary operation platform (18);
the frame (2) is installed on the crawler traveling mechanism (1), the hydraulic pump station (3), the power supply box (4), the sliding guide rail base (5), the temporary supporting device (17) and the auxiliary operation platform (18) are all installed on the frame (2), wherein the hydraulic pump station (3) and the power supply box (4) are located at the tail of the frame (2) and are arranged in a bilateral symmetry mode, the sliding guide rail base (5) is located at the front ends of the hydraulic pump station (3) and the power supply box (4), the loading device (15) is installed at the front end of the frame (2), the conveying device (16) is installed in the middle of the loading device (15) and below the frame (2), the sliding seat (7) is installed on the sliding guide rail base (5) in a sliding mode and is connected with the sliding guide rail base (5) through two propulsion oil cylinders I (6), the rotary type hobbing cutter arm sliding device is characterized in that the transmission case (8) is installed at the front end of the sliding seat (7), two hydraulic motors (9) are symmetrically installed on a case body of the transmission case (8), an output shaft of each hydraulic motor (9) is connected with an input shaft (8-1) of the transmission case, a gear I (8-2) installed on the input shaft (8-1) of the transmission case is meshed with a gear II (8-3) installed on the output shaft (8-4) of the transmission case, the hobbing cutter arm rotary sliding device (10) is installed at the front end of the output shaft (8-4) of the transmission case, the hobbing cutter arm rotary sliding device (10) comprises a casing (10-1) in a cuboid structure, an oil cylinder installation plate (10-3) is fixed at the upper end of the casing (10-1), an E-shaped groove (10-1-1) is formed in the casing (10-, the hob arm (11) is inserted into an E-shaped groove (10-1-1) and connected with the oil cylinder mounting plate (10-3) through a propulsion oil cylinder II (10-2), the low-speed large-torque motor (12) is mounted at the front end of the hob arm (11), and the eccentric disc hob (13) is eccentrically mounted on an output shaft of the low-speed large-torque motor (12);
the device is characterized in that the propulsion oil cylinder I (6), the hydraulic motor (9), the propulsion oil cylinder II (10-2), the temporary supporting device (17) and the auxiliary operation platform (18) are respectively connected with the hydraulic pump station (3) through hydraulic oil paths, the control box (14) is installed at the upper end of the power box (4), and the low-speed large-torque motor (12) and the control box (14) are respectively and electrically connected with the power box (4).
2. The eccentric hob type heading machine which does not affect the supporting operation and can break the rock according to the preset path as claimed in claim 1, wherein the eccentric disc cutter (13) comprises a disc-shaped cutter head (13-1), a plurality of mechanical cutting picks (13-2) are embedded at the front end of the disc-shaped cutter head (13-1), a plurality of alloy heads (13-5) are welded on the circumference of the disc-shaped cutter head (13-1), a hole (13-3) for installing an output shaft of the low-speed large-torque motor (12) is processed at the rear end of the disc-shaped cutter head (13-1), and a key groove (13-4) is processed in the hole (13-3).
3. An eccentric hob-type heading machine which does not affect the supporting work and can break rock along a predetermined path according to claim 2, characterized in that the axis of the hole (13-3) is offset from the axis of the disc-shaped cutter head (13-1) by 2-5 cm.
4. The eccentric hob type heading machine which does not affect the supporting operation and can break rock according to the preset path is characterized in that the material of the mechanical cutting pick (13-2) is hard alloy, the mechanical cutting pick (13-2) presents an Archimedes spiral line array at the front end of the disc-shaped cutter head (13-1), and the rotation direction is anticlockwise.
5. An eccentric rotary cutter type heading machine which does not affect the supporting operation and can break rock along a predetermined path as claimed in claim 4 wherein there are 12 Archimedes spiral lines in the array.
6. An eccentric hob type heading machine which does not affect the supporting work and can break rock according to the preset path, according to the claim 2, characterized in that the alloy head (13-5) material is hard alloy, and the alloy heads (13-5) are distributed on the circumference of the disc-shaped cutter head (13-1) at equal intervals.
7. An eccentric hob type heading machine which does not affect the shoring work and can break rock along a predetermined path according to claim 1, characterized in that the direction of rotation of the low speed high torque motor (12) is counterclockwise.
8. The eccentric hob type heading machine which does not affect the supporting operation and can break rocks according to the preset path according to the claim 1, characterized in that the hob arm (11) comprises an arm body (11-1) which is of a cuboid structure, two parallel rectangular guide grooves (11-2) with the same width are arranged on the front end surface of the arm body (11-1), and the hob arm (11) realizes the positioning in the hob arm rotating sliding device (10) through the two rectangular guide grooves (11-2).
9. The eccentric hob type heading machine which does not affect the supporting operation and can break rocks according to the preset path according to claim 1, is characterized in that the temporary supporting device (17) is composed of four propulsion cylinders III and an arched supporting shed, the arched supporting shed is installed at the upper ends of the four propulsion cylinders III, the lower ends of the four propulsion cylinders III are fixedly installed on the frame, and the four propulsion cylinders III are respectively connected with the hydraulic pump station (3) through hydraulic oil paths.
10. The eccentric hob type heading machine which does not affect the supporting operation and can break rocks according to the preset path according to claim 1, is characterized in that the auxiliary operation platform (18) is composed of four propulsion cylinders IV and an operation platform, the operation platform is installed at the upper ends of the four propulsion cylinders IV, the lower ends of the four propulsion cylinders IV are fixedly installed on the frame, and the four propulsion cylinders IV are respectively connected with the hydraulic pump station (3) through hydraulic oil paths.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911071177.XA CN110735647B (en) | 2019-11-05 | 2019-11-05 | Eccentric hob type heading machine capable of breaking rock according to predetermined path without influencing supporting operation |
| PCT/CN2020/084608 WO2021088316A1 (en) | 2019-11-05 | 2020-04-14 | Eccentric hob type heading machine capable of breaking rock according to predetermined path without affecting supporting work |
| AU2020277229A AU2020277229B2 (en) | 2019-11-05 | 2020-04-14 | Eccentric hob type tunneling machine capable of breaking rock according to predetermined path without affecting supporting work |
| SE2130147A SE545716C2 (en) | 2019-11-05 | 2020-04-14 | Eccentric hob type tunneling machine capable of breaking rock according to predetermined path without affecting supporting work |
| JP2020568308A JP7094584B2 (en) | 2019-11-05 | 2020-04-14 | Eccentric hob type excavator that can crush rocks according to a predetermined route without affecting the support work |
| CA3101300A CA3101300C (en) | 2019-11-05 | 2020-04-14 | Eccentric hob type tunneling machine capable of breaking rock according to predetermined path without affecting supporting work |
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| CN201911071177.XA CN110735647B (en) | 2019-11-05 | 2019-11-05 | Eccentric hob type heading machine capable of breaking rock according to predetermined path without influencing supporting operation |
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| CN110735647A CN110735647A (en) | 2020-01-31 |
| CN110735647B true CN110735647B (en) | 2020-09-01 |
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| JP (1) | JP7094584B2 (en) |
| CN (1) | CN110735647B (en) |
| AU (1) | AU2020277229B2 (en) |
| CA (1) | CA3101300C (en) |
| SE (1) | SE545716C2 (en) |
| WO (1) | WO2021088316A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735647B (en) * | 2019-11-05 | 2020-09-01 | 中国矿业大学 | Eccentric hob type heading machine capable of breaking rock according to predetermined path without influencing supporting operation |
| CN114136826B (en) * | 2021-11-26 | 2024-03-29 | 中南大学 | Shaft conical surface broken rock test device |
| CN114412462B (en) * | 2022-01-19 | 2023-06-30 | 长沙矿山研究院有限责任公司 | Cutter head suitable for hard rock mining and hard rock mining method |
| CN114876486B (en) * | 2022-05-20 | 2023-03-10 | 中国矿业大学 | Roadway tunneling robot and automatic cutting control method |
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| WO2017132602A1 (en) * | 2016-01-27 | 2017-08-03 | Joy Mm Delaware, Inc. | Mining machine with multiple cutter heads |
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2019
- 2019-11-05 CN CN201911071177.XA patent/CN110735647B/en active Active
-
2020
- 2020-04-14 WO PCT/CN2020/084608 patent/WO2021088316A1/en active Application Filing
- 2020-04-14 SE SE2130147A patent/SE545716C2/en unknown
- 2020-04-14 AU AU2020277229A patent/AU2020277229B2/en active Active
- 2020-04-14 JP JP2020568308A patent/JP7094584B2/en active Active
- 2020-04-14 CA CA3101300A patent/CA3101300C/en active Active
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| US4045088A (en) * | 1975-04-17 | 1977-08-30 | Hannelore Bechem | Oscillating disk thin seam mining machine with steering |
| CN1546840A (en) * | 2003-12-04 | 2004-11-17 | 上海隧道工程股份有限公司 | Eccentric multi-axial multi-cutter type tunnelling machine |
| CN103590837A (en) * | 2013-11-20 | 2014-02-19 | 天津大学 | Eccentric cutter type shield machine cutterhead |
| WO2017132602A1 (en) * | 2016-01-27 | 2017-08-03 | Joy Mm Delaware, Inc. | Mining machine with multiple cutter heads |
Also Published As
| Publication number | Publication date |
|---|---|
| CA3101300C (en) | 2022-01-04 |
| AU2020277229A1 (en) | 2021-05-20 |
| CN110735647A (en) | 2020-01-31 |
| JP7094584B2 (en) | 2022-07-04 |
| SE2130147A1 (en) | 2021-06-01 |
| AU2020277229B2 (en) | 2022-02-17 |
| CA3101300A1 (en) | 2021-02-12 |
| SE545716C2 (en) | 2023-12-19 |
| WO2021088316A1 (en) | 2021-05-14 |
| JP2022500574A (en) | 2022-01-04 |
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